Call it sticker shock. Deborah Jourdan just can’t stomach the menu at California Pizza Kitchen anymore. But the problem is not the price or the food. It’s the calories. “I looked at the menu, and it said there were 1,100 calories in a plate of pasta,” the 22-year-old North Hollywood resident said. Salads can run 1,400 calories or more. Pizza? Up to 1,500. That was earlier this year, and she hasn’t been back since. “I don’t think I’d go back there now,” said Jourdan, eating a salad and a cookie at Panera Bread in Burbank, “because I’d be afraid there would be nothing for me to eat.” It’s a scenario that worries restaurateurs across the nation. Many California restaurants have introduced calorie counts on menus in recent years. But as part of the recent federal healthcare overhaul, the Food and Drug Administration is expected to roll out national rules by year-end requiring any chain with 20 or more locations to post calorie counts for every item they sell.